Electricity and Magnetism

The SI unit of electric current is the ampere (A), which is defined as the flow of one coulomb of charge per second.

Ohm's Law states that the voltage across a conductor is directly proportional to the current flowing through it, provided the temperature and other physical conditions remain constant.

The basic unit of charge in an electric circuit is the electron, which carries a negative charge of 1.602 x 10^-19 coulombs.

The process by which electric energy is converted into mechanical energy is called the motor effect. This is the principle behind electric motors, which use electromagnetic fields to generate motion.

The process by which mechanical energy is converted into electric energy is called the generator effect. This is the principle behind electric generators, which use electromagnetic fields to generate electricity.

The force that exists between two magnets or between a magnet and a magnetic material is called the magnetic force.

The region around a magnet where its magnetic force is strongest is called the magnetic field.

Electric and magnetic fields are perpendicular to each other. This relationship is known as the right-hand rule.

Radio waves are a type of electromagnetic wave that is used in radio communication.

Microwaves are a type of electromagnetic wave that is used in microwave ovens.

Visible light is a type of electromagnetic wave that is visible to the human eye.

X-rays are a type of electromagnetic wave that is used in X-ray machines.

Gamma rays are a type of electromagnetic wave that is used in gamma ray telescopes.

Ultraviolet rays are a type of electromagnetic wave that is used in ultraviolet lamps.

A rectifier is a device that converts alternating current (AC) to direct current (DC).